I havnt breast fed my 3 mnths old baby for 2 mnths canI still go back and feed him? and yesterday I saw that I wasspotting a little is that normal?

Answer Yes, it is absolutely possible to relactate. You will be giving your son a wonderful gift!

The first FAQ on the link below gives much more detail, but in short you bring the baby to the breast frequently, pump (or hand express) in between to also stimulate milk production, and then use a nursing supplementer (such as Medela's Supplemental Nursing System) to feed the expressed milk through a tube at the breast while the baby is suckling. There are also herbs and medications that can increase milk supply.